Driving mechanism.



W. A. MCKINNEY.

DRIVING jMEGHANISM.

APPLICATION FILED SEPT. 27, 1909.

956,721 Patented May 3,1910.

4 SHEETS-SHEET 1.

W. A. MCKINNEY.

DRIVING MECHANISM. APPLICATION FILE'D SEPT. 27, 1909.

Patented May 3, 1910.

W. A. MGKINNEY.

DRIVING MECHANISM. 1 7 v APPLICATION FILED SEPT. 27, 1909. 956,721 Q 1 Patented May 3, 1910.

4 SHEETS-SHEET 3.

I f". Z9.

anucutoz I g I flttozrwigo W. A. MCKINNEY.

' DRIVING MECHANISM.

APPLICATION FILED SEPT. 27, 1909.

Patented May 3, 1910.

' To all whom 'it may concern: I

WILLIAM A. Hummer, or oamnsvrnm, enoneu.

DRIVING MECHANISM.

Specification of Letters Patent.

Patented May 3, 1910.

Applicatioaflled September 27, 1909. Serial No; 518,828.

Be it known that I, WILLIAM A. MCKIN- NEY, a citizen of the United States, residin at Gainesville, in the county of Hall an State of Georgia have invented a new and useful Driving Mechanism, of which the following is a specification.

This mvention has relation to driving mechanism and it consists in the novel construction and arrangement of its parts as hereinafter shown and described.

The object of the invention is to rovide a comparatively light driving mec anism for a tractor especially adapted to be usedfor carrying cultivator beams and in which the parts are so arranged. that the beams that a growing crop may be effectually and quickly cultivated without being broken down or otherwise damaged and especially are these features desirable where the field 'of o eration is limited.

ith the above obje'ctin' view the tractor' includes the platform or frame Imounted upon an arched axle to the ends of whichare j ournaled traction wheels. A beam extends rearwardly from the frame or platform and at oneside thereof and a dirigible wheel is located at the rear end-of the said beam; "An engine is' mounted upon the platform'and-- distinct transmission devices are located at the sides of the frame for transmitting mo-- tion from the engine shaft .to the respective tractionwheels, These transmission devices are susceptible'of being operated whereby the said traction wheels are caused to turn in a forward or rearward direction and also the said transmission devices may be operated to cause them to raise or lower the cultivator beams which are-attached to the arch axle. In addition to the transmission devices above mentioned means are provided for simultaneously or singly locking or m turn bein to turn upon its axis thereby causing the tractor to describe a short turn upon the i ii d wing n gure nt eaccom anyin ra i 1 is a side elevatilwn of the traction cultlvator. Fig. 2 is a .top plan view of the same with parts removed and parts broken away. Fig. 3 is a transverse sectional view of the same. Fig. 4 is a diagrammatic view of a motion transmitting device used upon the cultivator showing the parts thereof in one position. Fig. 5 is a diagrammatic view of the means illustrated in Fig. 4 showing the parts thereof in another position. Fig. 6 is a diagrammatic view of the means illustrated in Fi 4 showing the parts in still another position. Fig. 7 is a detailed sectional new of a sprin mechanism used upon the cultivator for olding a crank shaft employed thereon in a normal position. Fig. 8-is. a-

detailed sectional view of the crank shaft which is operated upon bythe means shown in Fig. 7. Fig. 9 1s a transverse sectional view of a disk for elevating the cultivator beam and the shaft upon which it is mount.- ed. Fig. 10 is a transverse sectional view of a friction roll and crank shaft used upon the cultivator. Fig. 11 is an edge elevation -w1th parts in section of a lever mechanism used upon the cultivator for controlling the traction wheels thereof.

Thec'ultivator includes a platform 1 which is mounted upon an arch axle 2." Traction.

wheels 3 .are journaled for rotation at the ends of the axle: 2 and are provided upon their inner sides: with sprocket rims 4:. A.

beam 5 extends rearwardly from the plat-' form .1 and at one side thereof and its rear end is provided with a vertically disposed sleeve or hearing 6. A caster bracket 7 is journaled in the sleeve 6 and a wheel 8 ournaled in the bracket 7. The upper -end of the shank 9 'of the bracket? pro ect s above the 11 per end of the sleeve 6' and a tiller 10 is I I the upper end of the sleeve. A handle 11 1s fixed to the forward end of the tiller 10 and is located within convenient reach pf one occupying the operator seat 12 the sa d seat mounted u n the rear portion of the atform 1.. he plates 13 are fixed to the inner horizontal ortlons'of the ends of the arch axle 2 and c tivator beams ed :to the said shank 9 above .0,

14 are-pivotally connected at their forward V endsfby Shaft and the shaft is provided at its-opposite l9j'are mounted {upon the 'l'atform 1 atflthe sides thereof andthe en portionsfofflthe' end portions with friction rolls '18; hrames shaft 16 lieunder the intermediate pb fi bn of the said frames. Stub-crankfshafta'QO framejs 19 and-upon their cranks are, journaled friction rolls21.'- The said'rolls-have' injtheir peripheriesgaps or recesses 22 the 7 object of which will be hereinafter .ex-

' plained; G'rooved' disks or 23 are fixedooncentrmally with relation to the rolls '21 andthe upper ends of the ,chainsf24 are 7 attached to the peripheries of the-said or druins- 23 while the lower endsof the stud ehainsee are attached to the rear portions of the cultivator beams 14. Levers 25 are to the journaled portions of the stub- I crankshaft 20and'lugs 26 are alsofixedpto the journaled' portions of the said' s'tub Y .30.; n

w (if the ISlillbrSliBLfi :27. *Gou ter crank shafts-'31; are journaled"for rotat1on at the posite' s ides otthe forwardortionjof the eiaste {are journaled at the rear portions of the umqmot 'theirames 19 'and.:-- fixed ito' the ijou'rnaled phi-Hons- 27', Connecting 1 Me -a he re r n t h "and, friction wh] s32. are 'ourfarefixed' coneentric "ction' wheels 32 and forward 'portion is provided with a cross iece 44: which bears against the front suraee of the lugs 38'.

A handle 45 is .pivotally attached to the rear end of the bar- 4:2"a't the point 46 (which is in the vicinitylof the rear ends of the platform 1) and the rear end of-the said handle 45 lies within convenient reach of one occu- :1 pying the seat l2.,. The tension of the s ring '40 operating upon thejshaftsfll throng the sleeve 37 and lugs 38-n0rmally' hold the said shaft so that; the sp'eripheries'of the wheels 32 are out of engagement with the brake "shoes 36 and inasmuchfas the whee1sv32' are connected with 'the" traction wheels 3 by 'meansof the sprocket wheels V33,'sprocket, rinis 4 and sprocket chains 34:;as the said 3. The peripheries of the wheels 32 are thus normally held in engagement with the peripheris of the friction rolls 8 u on the engine shaft 16.] Thus as the sai shaft "rotates rotary movement is transmitted frictionally te -the wheels 32. When the cultiyator is moving in a forward direction the movement" transmitting parts are in the rel ative position as illustrated iii Fig. 4 in which View it 'will'he seen that the "friction roll 21 is out of engagement with the periphery. of the friction r011. 18 and consequently Qtact {with thei frmti '91 n 'ic n' er quently the -;roll1301'do es t rotate upon its of the roll 21 or thpiit':oiithe' '32; f V Presuming now that. it is desired to raise the cultivator'beam at one side of'the tractor without that at the other side. .'The lever 25 is swun' from the position shown Fig; A to that s ownfinFlg. 5. vThus the shaft 1 20 is partial y" rotated upon axisand'the. lug .26 is rotated about th .flx sof the, said .s'haftl; This 'Inovement on the part of the I jlu'gj 2fiimovesthe connecting-rod 29 lon'gitu e-1 s fl wheels 32-rotate so will the sprocket wheels the cultiiratoe beam- 15L in its lowermost pos tion." Thel'fri tio'jn-roll 30 is'notin-conaxis a'ndi's 'not' 'cofitact the periphery bei can

tractor to move in 'a backward direction or thetraction wheel at one side to rotate in a backward direction while that at-the other side is at rest or rotating in a forward direction; that lever 25 at the side of the tractor' which it is desired to move in a backward direction is swung from the position indicated in Fig., 5 to that indicated in Fig. 6

which may be done by reasonof the fact 1: at the ga 22 is at the periphery of the friction roll 18). When this is one the shaft 20 rotates still farther upon its axis Jand thelug 26 is carried around the axis of the said shaft so that the rod 29 is moved longitudinally and through the lug 28 the sha' 27 is partially rotated-whereby the periphery of the friction roll 30 is brought ln-contact with the periphery of the friction wheel 32 and roll-18 and the said wheel 32 is forced away from the periphery of the friction roll 18 inasmuch. as the shaft 31 may turn its bearing against the tension of the spring-40. Thus-instead of rotary movement transmitted directly from the disk 18 to t ewheel 32 it is transmitted from the roll 18 to the roll30 and 'to the .wheel 32.

Thus it will be seen that the traction wheel at one or both sides of the tractor cannot rotate in a rearward direction until after the cultivator beam or beams have been raised.

' It is of course understood that in order to cause the traction wheel :at the other side of the machine to rotate in a rearward direction it is necessary to manipulate the lever 25 at the other side of the cultivator in the manner just above described. The said levers at the'opposite sides of the tractor maybe manipulated simultaneously or at different times as maybe required.

At times it is desirable to cause the tractor to affect or make a short turn as for instance at. the end of a row and this may be accomplished by bringingthe handle 45 to one side or the other which will cause the bar 42 to swing laterally upon the pin 41. As the said bar 42 is swung as indicated'o'ne end of the crosspiece 44 will move away from one of the 111 s 38 while the othervend will move toward t e other In of the collar 37. The lugs toward which t e end of the cross piece 44 moves is forced back against the tension ofthe'spring 40 hearing against the said lug and the counter shaft 31 carr ing the ln is partially rotated whereby t e friction w eel 32 .is moved out of engagement with that friction roll 18 adjacent the same. Thus on the initial movement of the handle 45 one or the other of the frictionwheel 32 is sto ped in its rotation and should it be deslred to lock thesaid friction. wheel 32 in astate of rest the lateral swing of the handle 45*is continued which 10 whereb steering both traction wheels'at the same time the I handle 45 is swung vertically and when its upper portion comes in contact with the rear edge of the platform 1 the said edge serves as a fulcrum and the handle 45- be comes a lever whereby the bar 42 is 'moved longitudinally until the forward end of the slot 43 comes in contact with the forward side of the pin 41. As the said bar 42 moves rearwardly the cross piece 44 is carried back and engages both lugs 38 and turns both of the shafts 31. Thus both of the friction wheels 32 are moved away from-the peripheries of the friction rollers 18 and if desired the said friction wheels 32 may be moved into engagement with the brake shoes36.

l While in many instances it is desirable to operate the lever 25 at one side of the tractor Without disturbing the lever at the other side still in some cases it is desirable (in their initial movement'at least) that both levers be operated simultaneously. To accomplish'this the lever 47 is fulcrumed upon the platform 1 and'is connected by means of links 48 with the lever 25. The lever '47 has sufiicient' movement when swung to cause the levers 25 to move to such an extent as to elevate the cultivator beams 14 and the links possess sufficient flexibility to permit of the final movement of either of the levers 25 to reverse the rotation of the traction wheels from a forward direction to a rear direction.

As the cultivator moves along a row of plants, it ma be accurately guided in its course by an op ator manipulating the tiller -the ster wheel 8 serves as a w eel.

Having described my invention, what I claim as new and desire to secure by Letters- Patent is:

.1. A tractor comprising a frame, wheels journaled for independent rotation at the opposite sides thereof, an engine mounted upon the frame, separate means located at the opposite sides of the frame for transmitting movement from the engine to the wheels independently, and means for independently reversing the movement of said transmitting means.

2'. A tractor comprising a frame, wheels located at the o posite sides thereof, and joumaled for ind gine mounted upon the frame, independent ependent rotation, an en tive counter?shaftsto thewheels, andf for. moving the counter shaftsindependently, i against the tension ofrtheirfsprings to intern so journaledffor independent rotat o .upon the framgjs ringfgret'amed: counte {I orgirotation up n-v, the; frame, a said :c'o'unter shafts l having cranks,j

an l t d alt, v V opposite Sides frame for 'transmittin movement from the engine to the; wheels mdependently', means for reversing the movement. of each trans mitting meansf and means for interru ting,

the rotation 0 one of the wheels'whi e the other is in rotation;

3. A tractor comprising a frame, wheelsjournaled for independent rotationat the opposite sides thereof, an engine mounted upon the frame, transmission nieans located at the opposite sides of the'f'rame and adapt-., ed to transmit motion from the engine tov the wheels independently, saidtransmission means being susceptible of independent ma nipulation to cause the wheels to rotate inde endently in either of two directions or to ring the wheels to a state of rest.

4. A tractor comprising a frame, wheels journaled-for. independent rotation at the opposite sides thereof, an-eng'ine mounted u on the frame, spring retained counter: s afts 'ournaled upon the-frame, friction means or transmitting movement; from the engine shaft to thecounten shafts,inean for transmitting-movement from the resp rupt the frictional connectionkhetwee th en e shaft and ,thetount'en-shaft a A tractor comprising, a

opposite sides thereof, .an e gine;

shafts journal friction wheels. journaled the; crank and frictionally connected 75w 'the-engin shaft, j means I i-for trail mm r -from the wheelsj'to the respective.

wheels located-at their-opposite sides of the.

' the counter frame," and means for mom shafts independ entl' against t eir retaining D springs to interru t'thexfrictional connection b g een the frictionjwheels and the engine 6.- A tractorlconiprisinga frame, wheel s jo'urnaled for independent rotation at the opposite sides thereof, an; engine mounted upon the frame,'connt'er shafts journaied for rotation upon, the frame, means fric- {'tionallyiconnecting the- 'eounter shafts with v the engine shafts, means for transmitting movement from thej'count'er shafts to the respectiv'e supportingfwheels, means for operatin the counter fshaftsand adapted to be manipulated to causeone -.or the other to move to, 'interru tjthefifrictional connection between thesai counter shafts and the engme shafts, said means beingsusceptible of manigglation whereby both. counter shafts.

may moved simnltaneously.

a 7- 1 A t or, comprising jme wheels f' jqnrnaled for independent rotation at the thelgg frame, an vengine frame Separate means;

pqsas side's}; gd. v 0f thea "av d whee sen means-z t em-1 2 wne -for;- ope ativeiy conncctingithe engine? with a a x t d to b 0113 7 5 against rotation while 

